Dyfyniad APA

Pohanish, R. P., & Sittig, M. (2015). Sittig's handbook of pesticides and agricultural chemicals (Second edition.). William Andrew Publishing.

Dyfyniad Arddull Chicago

Pohanish, Richard P., and Marshall Sittig. Sittig's Handbook of Pesticides and Agricultural Chemicals. Second edition. Norwich, NY, U.S.A: William Andrew Publishing, 2015.

Dyfyniad MLA

Pohanish, Richard P., and Marshall Sittig. Sittig's Handbook of Pesticides and Agricultural Chemicals. Second edition. William Andrew Publishing, 2015.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.